87.5 Theories for strong electrolyte 1. The Debye-Huckel theory The Debye-Huickel theory was proposed by Peter Debye and Erich Huckel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. It is a linearized poisson-Boltzmann model, which assumes an extremely simplified model of the electrolyte solution but nevertheless gave accurate predictions of mean activity coefficients for ions in dilute solution The Debye-Huckel equation provides a starting point for modern treatments of non-ideality of electrolyte solutions Limitations and extensions: hopelessly oversimplified (I)Complete dissociation; (2) Weak electrolytes; (3)Ions are spherical, point charge and polarized; (4) Role of the solvent https://en.wikipedia.org/wiki/debye-huckeltheoryThe Debye–Hückel theory was proposed by Peter Debye and Erich Hückel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. It is a linearized Poisson–Boltzmann model, which assumes an extremely simplified model of the electrolyte solution but nevertheless gave accurate predictions of mean activity coefficients for ions in dilute solution. The Debye–Hückel equation provides a starting point for modern treatments of non-ideality of electrolyte solutions. https://en.wikipedia.org/wiki/Debye–Hückel_theory Limitations and extensions: hopelessly oversimplified (1) Complete dissociation; (2) Weak electrolytes; (3) Ions are spherical, point charge and polarized; (4) Role of the solvent 1. The Debye-Hückel theory §7.5 Theories for strong electrolyte